Across
- 3. mass per volume
- 8. liquid to a solid
- 9. a group of atoms bonded together
- 11. stable in shape
- 12. element species of atom
- 13. atomic number 17
- 14. liquid into vapor.
- 19. number of protons in the nucleus of an atom
- 20. display of the chemical elements
- 22. Kg
- 23. has a net electrical charge.
- 24. separate a solid from a liquid
- 25. how dangerous a chemical
- 26. atomic number 6
- 28. form strongly acidic compounds with hydrogen from which simple salts can be made.
- 29. also called dissolution
- 33. 1/1000 kilometer
- 35. force exerted
- 36. gas phase to the liquid phase
- 38. also called significant digits
- 40. consisting of protons and neutrons.
- 41. study of matter
- 43. binary compound of oxygen with another element
- 44. two or more different substances
- 46. has metallic bonds.
- 47. charge of negative electricity
Down
- 1. Km
- 2. substance that flows freely but is of constant volume
- 4. solid to a gas
- 5. solidification of atoms
- 6. using selective boiling and condensation
- 7. symbol H.
- 9. comparing a quantity with a standard unit.
- 10. smallest constituent unit of ordinary matter
- 14. also the physical basis of sweating.
- 15. 1/1000 kiloliter
- 16. two or more chemical elements
- 17. can also be called semimetals
- 18. any substance that has mass and takes up space
- 21. positive electric charge
- 27. same mass as a proton but without an electric charge
- 30. atomic number 8
- 31. solid to a liquid.
- 32. organic compound
- 33. total number of protons and neutrons
- 34. no fixed shape and no fixed volume
- 37. atomic number 47
- 39. Au
- 42. ¹/₁₀₀₀ kilogram
- 45. inorganic compound